Stealth Diesel Tuner Reviews: A Comprehensive Guide

You’ve probably heard of the Stealth Diesel Tuner if you’re looking for a diesel tuner. In the diesel community, this well-liked tuner has a solid reputation for both performance and adaptability.

What’s the big deal, though?

In this post, We’ll go deeper into the Stealth Diesel Tuner, examine its features, and determine whether it lives up to its reputation in our in-depth review.

What is a Stealth Diesel Tuner?

Stealth Diesel Tuner

A Stealth Diesel Tuner is a performance module designed to optimize your diesel engine’s power output, fuel efficiency, and overall performance.

This simple device plugs into your car’s Engine Control Unit (ECU) and instantly optimizes your engine’s settings to boost hp, torque, and response from the throttle.

Also Read: Is Banks EconoMind Diesel Tuner Worth It?

The Stealth Diesel Tuner Difference

Although there are many diesel tuners available, the Stealth Diesel Tuner distinguishes out for the following reasons:

  1. Ease of Installation: As a plug-and-play device, the Stealth Diesel Tuner may be installed by anyone without the need for specific equipment or technical expertise. You merely need to discover your car’s ECU and plug in the tuner. Now you’re ready to go.
  2. Real-time Adjustments: Unlike some tuners that require you to manually adjust settings, the Stealth Diesel Tuner automatically adjusts your engine’s parameters in real-time. This means you’ll always be driving at peak performance without any extra effort.
  3. Vehicle Compatibility: The Stealth Diesel Tuner is compatible with a wide range of diesel vehicles, including trucks, SUVs, and cars. The company’s website offers a useful compatibility tool if you’re unsure whether the tuner is the appropriate choice for your car.
  4. Fuel Efficiency: The Stealth Diesel Tuner not only increases your engine’s performance but also improves its fuel efficiency. This means you’ll save money at the pump while enjoying a more powerful ride.
  5. Warranty Protection: The Stealth Diesel Tuner is designed not to void your vehicle’s warranty. We’ll explain this topic with detailed information in the FAQ section below.

Real-World Performance: What to Expect

Stealth Module

After going through the fundamentals, let’s examine the Stealth Diesel Tuner’s actual performance.

Significant gains in horsepower, torque, and throttle response have been noted by users.

These improvements make driving more enjoyable, especially for people who tow or move large goods.

Although your vehicle will determine the precise increases in horsepower and torque, many users report gains of 50–100 HP and 100–200 lb–ft.

Additionally, Fuel economy improvements can save 2-4 MPG, which adds up over time.

  • User Reviews: What Are People Saying?

Users have overwhelmingly given the Stealth Diesel Tuner positive feedback. Many compliment the tuner’s simplicity in setup, saying it only takes a few minutes.

Users also frequently mention observable gains in power, torque, and fuel efficiency.

Of course, no device is faultless, and a few users have complained about small tuner difficulties. With the assistance of the attentive customer support staff at Stealth Diesel Tuner, these problems are frequently promptly fixed.

  • Pricing and Where to Buy

The Stealth Diesel Tuner is available for purchase on the company’s website and through authorized retailers. Depending on your vehicle’s make and model, the tuner costs $500–$700. While this may seem like a significant investment, the improved performance and fuel efficiency can quickly offset the cost.

Also Read: About MM3 Tuner 6.7 Cummins.

Common Questions (FAQ)

How much HP does a stealth module add?

The amount of horsepower added by a Stealth Diesel Tuner varies depending on the vehicle, but users generally report gains of 50-100 HP. Keep in mind that individual results may vary, and the specific increase in horsepower will depend on your vehicle’s make, model, and existing performance modifications.

How does the stealth module work?

The Engine Control Unit (ECU) of your car is connected to the Stealth Diesel Tuner, which then modifies its settings in real time. This entails, among other things, adjusting the fuel delivery, air intake, and turbo boost levels. The tuner can raise your engine’s performance with these modifications, including horsepower, torque, and throttle responsiveness.

Does Stealth Module void warranty?

The Stealth Diesel Tuner’s ability to maintain your car’s warranty is one of its key selling advantages. The tuner ensures that modifications are made without harming your engine or any of its parts by working within the safe limits established by the car’s manufacturer. However, it’s always a good idea to double-check that installing a Stealth Diesel Tuner won’t affect your warranty coverage by contacting the manufacturer or dealership of your particular car.

Where is stealth modules located?

The plug-and-play Stealth Diesel Tuner links to your vehicle’s ECU. The ECU is usually under the hood or behind the dashboard, depending on your vehicle’s make and model. The Stealth Diesel Tuner’s installation guide will provide detailed instructions on locating and connecting to your vehicle’s ECU.


The Stealth Diesel Tuner has proven itself as a powerful and versatile performance module for diesel vehicles. It’s understandable why diesel aficionados favor this tuner, given its plug-and-play installation, real-time tweaks, and substantial performance boosts.

The Stealth Diesel Tuner boosts horsepower, torque, throttle response, and fuel efficiency, making it ideal for diesel car owners. Although the price may first seem high, the long-term fuel cost reductions and enhanced driving enjoyment make it a worthy investment.

Research and understanding the potential effects on your vehicle’s warranty are essential when using any aftermarket product. However, the Stealth Diesel Tuner is designed to work within your vehicle’s manufacturer’s parameters, ensuring that it won’t void your warranty.

Overall, the Stealth Diesel Tuner is an excellent addition to any diesel vehicle looking for a performance boost. With its ease of installation, real-time adjustments, and impressive results, it’s no wonder this tuner has earned such rave reviews from the diesel community.

Clayton S. Johnson

Well, I am Clayton who writes, manages, and does overall stuff for this website. I live somewhere in Stone Mountain, Georgia, and used to have a full-time job. But the pandemic taught me to do more do with my life. So, I quit my job and travel a lot! Since I have tons of time now, I write about all the stuff I have done, used, and have first-hand experiences.

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